Search
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Physics_II_(2212)/02%3A_Math_Review/2.08%3A_FunctionsSome students describe this function by stating that it “makes everything positive.” By the definition of the absolute value function, we see that if x<0, then |x|=−x>0, and if x>0, then \...Some students describe this function by stating that it “makes everything positive.” By the definition of the absolute value function, we see that if x<0, then |x|=−x>0, and if x>0, then |x|=x>0. However, for x=0, |x|=0. Therefore, it is more accurate to say that for all nonzero inputs, the output is positive, but if x=0, the output |x|=0.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/02%3A_Math_Review/2.08%3A_FunctionsSome students describe this function by stating that it “makes everything positive.” By the definition of the absolute value function, we see that if x<0, then |x|=−x>0, and if x>0, then \...Some students describe this function by stating that it “makes everything positive.” By the definition of the absolute value function, we see that if x<0, then |x|=−x>0, and if x>0, then |x|=x>0. However, for x=0, |x|=0. Therefore, it is more accurate to say that for all nonzero inputs, the output is positive, but if x=0, the output |x|=0.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Physics_I_(2211)/02%3A_Vectors_and_Math_Review_Topics/2.07%3A_Math_Review_of_Other_Topics/2.7.12%3A_FunctionsSome students describe this function by stating that it “makes everything positive.” By the definition of the absolute value function, we see that if x<0, then |x|=−x>0, and if x>0, then \...Some students describe this function by stating that it “makes everything positive.” By the definition of the absolute value function, we see that if x<0, then |x|=−x>0, and if x>0, then |x|=x>0. However, for x=0, |x|=0. Therefore, it is more accurate to say that for all nonzero inputs, the output is positive, but if x=0, the output |x|=0.
